The Challenge
GPS and other GNSS signals are vital for critical infrastructure systems like communications networks, financial systems, and power grids. However, these systems were not originally designed for many of today’s demanding applications. As a result, vulnerabilities arise due to the inherent weaknesses of GNSS signals, which are weak by the time they reach the ground from 20,000 km altitude. This causes difficulties indoors and susceptibility to interference from natural factors like the ionosphere or intentional jamming. Additionally, commercial GNSS signals are unencrypted, making them vulnerable to spoofing—a serious risk for critical uses.
The Solution
Spectracom’s STL (Satellite Time and Location) provides a secure, resilient timing solution to complement GPS and other GNSS signals, enhancing reliability and security. STL operates via the Iridium® constellation of 66 low-earth-orbiting satellites, delivering signals 1,000 times stronger than GNSS, enabling deep indoor penetration and robust resistance to jamming without relying on local infrastructure. Its cryptographic security also protects against intentional spoofing.
When combined with GPS and GNSS, STL creates a powerful and dependable timing solution for critical applications. Spectracom’s precision timing products integrated with STL are ideal for GNSS augmentation and indoor timing solutions where GPS is unavailable. For mission-critical timing needs, contact Spectracom to explore STL and other resilient positioning, navigation, and timing solutions.
